add httpGet

snippets/httpGet.md

@@ -0,0 +1,21 @@
+### httpGet
+
+Makes a `GET` request to the passed `URL` using `XMLHttpRequest` web api.
+
+Explain briefly how the snippet works.
+
+```js
+const httpGet = url => {
+  const request = new XMLHttpRequest();
+  request.open("GET", url, true);
+  request.onload = () => {
+    const response = JSON.parse(request.responseText);
+    (request.readyState === 4 && request.status == "200") ? console.log(response) : console.error(response);
+  }
+  request.send();
+}
+```
+
+```js
+functionName('sampleInput') // 'sampleOutput'
+```